Re: [Boost-bugs] [Boost C++ Libraries] #4594: Boost exception classes do not have GCC default visibility

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4594: Boost exception classes do not have GCC default visibility
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-07-15 17:31:16

#4594: Boost exception classes do not have GCC default visibility
------------------------------------------------------------+---------------
  Reporter:  Jonathan Jones <jonathan.jones@…>              |       Owner:  emildotchevski
      Type:  Patches                                        |      Status:  reopened      
 Milestone:  To Be Determined                               |   Component:  exception     
   Version:  Boost 1.47.0                                   |    Severity:  Showstopper   
Resolution:                                                 |    Keywords:                
------------------------------------------------------------+---------------
Changes (by Ethan Tira-Thompson <ejt@…>):

 * cc: ejt@… (added)
  * status:  closed => reopened
  * version:  Boost 1.40.0 => Boost 1.47.0
  * resolution:  fixed =>

Comment:

 I confirm Mark's error, I see the same error also with Boost 1.47
 (building Ogre3D on Xcode 4, gcc 4.2.1).

 I notice some visibility stuff was added to exception.hpp, but this is not
 enough.  Apparently, error_info_injector and clone_impl (in
 exception/exception.hpp) both need to be wrapped with visibility pragmas
 in order to fix that error.

 Further, thread/exceptions.hpp also needs to be wrapped with visibility,
 or you will get:

 {{{ld: bad codegen, pointer diff in
 boost::thread_exception::thread_exception()to global weak symbol vtable
 for boost::thread_exceptionfor architecture i386}}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4594#comment:12>
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